PDB Statistics: PDB Data Distribution by Molecular Weight (Entity)

Molecular weight is calculated for each chemically distinct component of a PDB structure, e.g. protein, nucleic acid.

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Molecular Weight (Daltons)Number of Entities
< 5K41,642
5K - 10K47,276
10K - 15K77,340
15K - 20K59,320
20K - 25K58,024
25K - 30K45,957
30K - 35K33,076
35K - 40K29,483
40K - 45K21,888
45K - 50K16,431
50K - 55K13,650
55K - 60K9,989
60K - 65K6,996
65K - 70K5,183
70K - 75K3,719
>= 75K30,531